Clinical research of extensive alveolar cleft treatment with computer assistant distraction osteogenesis
10.3760/cma.j.issn.1002-0098.2019.02.007
- VernacularTitle: 数字化辅助牵张成骨修复宽大牙槽突裂的临床初步研究
- Author:
Bin ZHANG
1
;
Shuhao LIU
2
;
Zhenjin ZHAO
3
;
Xiaofeng BAI
1
;
Zengjian LI
1
;
Qiang LIU
1
Author Information
1. Department of Oral-Maxillofacial Surgery and Plastic Surgery, School of Stomatology, China Medical University & Liaoning Institute of Dental Research, Shenyang 110002, China
2. Department of Radiography, School of Stomatology, China Medical University & Liaoning Institute of Dental Research, Shenyang 110002, China
3. Department of Orthodontics, School of Stomatology, China Medical University & Liaoning Institute of Dental Research, Shenyang 110002, China
- Publication Type:Journal Article
- Keywords:
Alveolar process;
Traction;
Surgery, computer-assisted;
Three-dimensional printing
- From:
Chinese Journal of Stomatology
2019;54(2):112-117
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the feasibility and outcome of computer assisted distraction osteogenesis in the treatment of extensive alveolar cleft.
Methods:Four patients [1 male and 3 females, aged (15.5±3.7) years] received treatment in the Department of Oral-Maxillofacial Surgery and Plastic Surgery, School of Stomatology, China Medical University from June 2016 to April 2018 were involved in this study. All the patients with extensive alveolar cleft [cleft width (7.64±1.29) mm] were performed orthodontic treatment to expand the dental arch and interdental space between the first molar and premolars. Three-dimensional (3D) model of the maxilla and the osteotomy guider were printed according to the CT data. The fix wings of the distractor were pre-shaped according to the 3D model. The osteotomy was performed at the interdental space and horizontal plate of palate to dissociate the alveolar bone segment. The distractor was fixed on the predetermined position. Distraction (0.4-0.8 mm/day) was performed in 7 days later and stopped when the incision connected with the canine. The distractor was removed after six months.
Results:The distraction period was (10.8±2.5) d in four cases. The cleft was completely closed with interdental bone anchored distraction in four cases. The imaging examination in six months showed good new bone structure in the distraction zone and bone connection of the cleft.
Conclusions:Computer assisted distraction osteogenesis was effective and feasible to close the extensive alveolar cleft and provide sufficient new bone tissue.
